#5BB1EC#5BB1EC

#5BB1EC is a light, moderate cyan. Relative luminance 0.397; OKLCH L 73.1% C 0.120 H 241.0°. Best body text is #000000 at 8.94:1 contrast (WCAG AA passes).

Color values

HEX	#5BB1EC
RGB	rgb(91, 177, 236)
HSL	hsl(204, 79%, 64%)
HSV	hsv(204, 61%, 93%)
CMYK	cmyk(61.4%, 25%, 0%, 7.5%)
CIE-LAB	lab(69.27, -8.58, -37.25)
CIE-LCH	lch(69.27, 38.22, 257.03°)
OKLab	oklab(73.1% -0.058 -0.1046)
OKLCH	oklch(73.1% 0.12 241)
XYZ	xyz(35.1711, 39.7211, 85.1540)
Luminance	0.3972 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5BB1EC #EC965B

analogous

#5BECDF #5BB1EC #5B69EC

triadic

#5BB1EC #EC5BB1 #B1EC5B

tetradic

#5BB1EC #DF5BEC #EC965B #69EC5B

square

#5BB1EC #DF5BEC #EC965B #69EC5B

split-complementary

#5BB1EC #EC5B69 #ECDF5B

monochromatic

#1575B7 #2497E6 #5BB1EC #92CBF2 #C9E5F9

Accessibility & contrast

On white

2.35

#5BB1EC on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.94

#5BB1EC on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #5BB1EC

8.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5BB1EC	#FFFFFF	#000000	##000000
##5BB1EC	1.00	2.35	8.94	8.94
#FFFFFF	2.35	1.00	21.00	21.00
#000000	8.94	21.00	1.00	1.00
##000000	8.94	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#96B1EF

Deuteranopia (green-blind)

#83A3EB

Tritanopia (blue-blind)

#00C0C5

Achromatopsia (no color)

#A9A9A9

Design tokens & code

CSS

--color: #5bb1ec;
/* rgb */ color: rgb(91, 177, 236);
/* oklch */ color: oklch(73.1% 0.120 241.0);

Tailwind

colors: {
  custom: {
    50: '#96c8f2',
    500: '#5bb1ec',
    950: '#000000',
  },
}

SCSS

$custom: #5bb1ec;
$custom-light: #96c8f2;
$custom-dark: #000000;

JSON

{
  "hex": "#5bb1ec",
  "rgb": {
    "r": 91,
    "g": 177,
    "b": 236
  },
  "hsl": {
    "h": 204.414,
    "s": 79.235,
    "l": 64.118
  },
  "oklch": {
    "l": 0.73102,
    "c": 0.11961,
    "h": 241
  },
  "luminance": 0.39725
}

Semantic roles & 50–950 ramp

primary

#5BB1EC

secondary

#EBCDB8

accent

#5F0ADC

background

#F9FCFE

surface

#F2F8FD

border

#CCD1D5

text

#0E1317

muted

#7E8285

Preview Lab

Preview with #5BB1EC

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →